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Critical Deceleration
Warframe · Mod

Critical Deceleration

Shotgun critical chance and fire-rate mod

Released Oct 24, 2014

Critical Deceleration adds critical chance to shotguns while reducing fire rate. It may suit a compatible shotgun when the critical chance bonus is useful and the slower firing rate is acceptable. It is incompatible with Blunderbuss and Flawed Blunderbuss.

TypeShotgunPolaritymaduraiMax rank5Base drain4VariantStandardRarityRare
Critical Deceleration GUIDE

Understand Critical Deceleration

Useful when…

  • Raise critical chance on a compatible shotgun when the fire-rate penalty is acceptable.
  • Use a partial rank for a smaller critical chance bonus and fire-rate reduction.

Rank effects

At rank 0, Critical Deceleration grants +33.3% critical chance and -3.3% fire rate. At rank 3, it grants +133.3% critical chance and -13.3% fire rate; at rank 5, it grants +200% critical chance and -20% fire rate. Both effects increase together as the mod is ranked.

wiki.warframe.com ↗

Compatibility and stats

This is a standard shotgun mod with Madurai polarity and base drain 4. It is incompatible with the named mods Blunderbuss and Flawed Blunderbuss. Blunderbuss provides +90% critical chance, while Flawed Blunderbuss provides +40%; neither description lists a fire-rate effect. Accelerated Blast instead provides +60% fire rate and +60% Puncture.

Ranking and fusion costs

The maximum rank is 5. Rank 3 provides +133.3% critical chance and -13.3% fire rate. The example cost for the rank 2-to-3 step is 120 Endo and 5,796 Credits; the rank 4-to-5 step costs 480 Endo and 23,184 Credits. A lower rank gives smaller listed bonuses and penalties than rank 5.

wiki.warframe.com ↗

Listed acquisition source

The listed acquisition location is Derelict Vault, with a listed chance of 4.17.

Limitations and tradeoffs

  • Critical chance increases together with a fire-rate penalty.
  • It is incompatible with Blunderbuss and Flawed Blunderbuss.

Common mistakes to avoid

  • Describing the incompatibility with Blunderbuss and Flawed Blunderbuss as a broader equipment restriction.
  • Ignoring the fire-rate reduction when choosing a rank.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0+33.3% Critical Chance
-3.3% Fire Rate
400
1+66.7% Critical Chance
-6.7% Fire Rate
5301,449
2+100% Critical Chance
-10% Fire Rate
6904,347
3+133.3% Critical Chance
-13.3% Fire Rate
721010,143
4+166.7% Critical Chance
-16.6% Fire Rate
845021,735
5+200% Critical Chance
-20% Fire Rate
993044,919

These are listed mod effects and fusion costs, not final build damage. Matching and mismatched polarities change capacity. Totals assume starting at rank 0.

References and version

Game data version: Pinned public export

Critical Deceleration — WARFRAME Wiki ↗wiki.warframe.com ↗
Technical source data for verification

These machine-readable game records support the calculations and factual checks. The wiki references above are intended for reading.

Warframe Public Export ↗Raw game data (JSON) ↗wiki.warframe.com ↗

Original data record ↗

Optional: calculate an upgrade or configurationOpen the calculator when you want a cost estimate or a compatibility check.
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Fusion cost and capacity

0Endo
0Credits
4Target slot drain
RankObserved effectDrainEndo from 0Credits from 0
0+33.3% Critical Chance · -3.3% Fire Rate400
1+66.7% Critical Chance · -6.7% Fire Rate5301,449
2+100% Critical Chance · -10% Fire Rate6904,347
3+133.3% Critical Chance · -13.3% Fire Rate721010,143
4+166.7% Critical Chance · -16.6% Fire Rate845021,735
5+200% Critical Chance · -20% Fire Rate993044,919

Slot polarity changes drain; fusion prices depend on mod rarity and family.

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